How can I relocate the Transform tool in Sculpt mode (Blender2.81)?
Thank you for your answers!

I guess i wasn't clear enough but my problem only concerned with Sculpt mode.

However i've found a solution: Expand Mask by Topology (shift+a) and transform gizmo automatically jumps to middle of the unmasked are. IMO still an unintuitive and cumbersome method, but better than nothing. It'd be great If we can manipulate the tranform gizmo in sculpt mode independently.